diff options
| author | Alexey Samsonov <samsonov@google.com> | 2012-05-04 07:39:27 +0000 |
|---|---|---|
| committer | Alexey Samsonov <samsonov@google.com> | 2012-05-04 07:39:27 +0000 |
| commit | fd00eecad6fa5400cf37269d84361a0551d0e6d3 (patch) | |
| tree | 067719696580ccce897a3e0234cdba9eac021af7 /lib/Frontend/CompilerInvocation.cpp | |
| parent | dbbaed3a485fdc5b5efb01d1e1c56f27e79bff80 (diff) | |
This patch adds a new Clang compiler flag "-gline-tables-only".
It reduces the amount of emitted debug information:
1) DIEs in .debug_info have types DW_TAG_compile_unit, DW_TAG_subprogram,
DW_TAG_inlined_subroutine (for opt builds) and DW_TAG_lexical_block only.
2) .debug_str contains only function names.
3) No debug data for types/namespaces/variables is emitted.
4) The data in .debug_line is enough to produce valid stack traces with
function names and line numbers.
Reviewed by Eric Christopher.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156160 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index e8345fdfd7..0635be6667 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -184,6 +184,9 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) { switch (Opts.DebugInfo) { case CodeGenOptions::NoDebugInfo: break; + case CodeGenOptions::DebugLineTablesOnly: + Res.push_back("-gline-tables-only"); + break; case CodeGenOptions::LimitedDebugInfo: Res.push_back("-g"); Res.push_back("-flimit-debug-info"); @@ -1148,7 +1151,9 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ? CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining; - if (Args.hasArg(OPT_g_Flag)) { + if (Args.hasArg(OPT_gline_tables_only)) { + Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly; + } else if (Args.hasArg(OPT_g_Flag)) { if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo; else |